Rank	Countries/Territories	Count	Percent
1	United States	314	51.8%
2	China	122	20.1%
3	Germany	61	10.1%
4	Japan	27	4.5%
5	France	15	2.5%
6	India	10	1.7%
7	Korea, Republic of	8	1.3%
8	Canada	7	1.2%
9	Ireland	6	1%
10	United Kingdom	5	0.8%
11	Netherlands	5	0.8%
12	Malaysia	4	0.7%
13	Russia	4	0.7%
14	Norway	3	0.5%
15	Singapore	2	0.3%
16	Slovakia	2	0.3%
17	Tunisia	2	0.3%
18	Australia	2	0.3%
19	Cyprus	2	0.3%
20	Indonesia	2	0.3%
21	Iceland	2	0.3%
22	Poland	1	0.2%